Using the income statement below, develop a common-size statement by filling in the blanks provided. Show your work. Round to one decimal place. (7pts) 1015 acer 2009 2009 Net sales Cost of goods sold Gross margin Operating expenses Income before income taxes Income taxes expense Net income $780,000 452,400 $327,600 156,000 $171,600 124,800 $ 46,800